Title :
A novel integrated optics wavelength filter in InGaAsP-InP
Author :
Broberg, Bjorn ; Lindgren, B. Stefan ; Öberg, Magnus G. ; Jiang, Hao
Author_Institution :
Institute of Microwave Technology, Stockholm, Sweden
fDate :
2/1/1986 12:00:00 AM
Abstract :
An InGaAsP-InP integrated optics wavelength selective device is proposed and demonstrated. It utilizes coupling between epitaxial layers with different refractive indices and thicknesses. The device is suitable for integration to form, e.g., a monolithic receiver for wavelength division multiplexed optical communication systems. Design considerations are given. The filter bandwidth and center wavelength can be freely chosen, and bandwidths as narrow as 1.5 nm at 1.3 or 1.55 μm center wavelength are shown feasible. Electrical tuning is possible. Experimental filters show that devices can he fabricated with performance in good agreement with theory, The 22-nm -3-dB bandwidth at 1.12-μm center wavelength presently demonstrated is limited by the measurement system.
Keywords :
Integrated optics; Optical directional couplers; Optical fiber receivers; Optical filters; Wavelength-division multiplexing; Bandwidth; Epitaxial layers; Filtering theory; Integrated optics; Optical fiber communication; Optical filters; Optical receivers; Optical refraction; Optical tuning; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1986.1074686
